Pivotal clamping device for bumpers and the like



Apr, 30, 123

W. E. DUNS-TON PIvdTAL CLAMPING DEVICE FOR BUMPERS AND THEVLIKE Filed Dec. 16, 1922 Mx I Patented Apr. lth lii li.

entrain snares earns-r carries.

'my invention is emp bein DUNSTON, OF KALA'MAZOO, IiEIHIGAN, ASSIGNOR TC CHBIfiTIAhl GIRL, 0F

KALAMAZOO, MICHIGAN. I

EIVQT ZAL DEVICE FOR BUMPERS AND THE LIKE.

lappiication filed December 16, 1922. Serial R0. 697,276,

' otal Clamping Devices for Bumpers and the like, of which the following is a full, clear, and exact. descriptioh, reference being'had to the accompanying drawings.

This invention relates to means for clamping and pivotally supporting various objects and, as shown herein. is especially adapted for the purpose of clamping and pivotally supporting bumpers for auto-mobiles. it is the general object and purpose of the invention to provide simple, etlicient, and sig'htly clamping and pivoting means for objects of the nature mentioned .I accomplish these objects in and through the construction and arrangement of parts shown in the accompanying drawings, wherein Fig. 1 represents a plan view of a portion of a bumper and a portion of one of its supporting arms, illustratin the manner in which eyed therewith; Fig. 2 is an enlarged detail in plan view of the clamping and pivoting device and its connotations; Fig. 3 a sectional detail corresponding to the line 3-3 of Fig. 2; and Fig. 4 a similar detail corresponding to the line H of Fig. 3.

Describing by reference characters the va' rious parts illustrated herein, 1 represents the front or impact bar and 2 the rear or auxiliary bar of bumper, the second bar connected at its ends to the ends of the rst-mentioned bar, as by means of bolts, one of which is indicated at 8. The bumper may be of any standard or approved con struction; for: instance, such as shown in the patent to Allan L. Yd-fIOI, No. 1372,15; issued March 22, 1921. Tl'ie rear or auxiliary bar 2 is referably a flat metal plate, such as is enip oyed in the manufacture of vehicle springs, whereby its opposite faces afi'ord bearing surfaces for the clamping members or" the devices by which the bumper ispivotally connected to its supporting arms; the outer end of one of said arms is indicated at at, the inner ends or the arms being connected in any suitable manner to the corresponding side frame members of an automobile (not shown}. The supporting arm at is shown also in "the term of a flat spring plate, having at its front. or outerend an eye 5. The Wid of the arm 5'. will pref erably be substantiall the'sanie as the width of theplate or bar 2.

The means for pivotally supporting the bumper from each of the arms l comprises a pair or clamping plates and a pair of special eye bolts for each arm, together with a bolt adapted to extend'through the eyes of said bolts and, through the eye 5. The eye bolts are preferably identicalin construction, whereby they are interchangeable; so

also are the clamping plates. Each eyc bolt is provided at its inner 01' rear end witlra bore 6 within a nut or head seat 7 and with .a flat bearing taco 8 adapted to engage an end of the eye 5. In addition, each bolt is provided with a transversely extending shoulder 9, adapted tb form a. stop for one of the clamping members, and a 1th a bolt stem 10 extendinpyfrom such shoulder and having its end threaded. as indicated at 11. -'l2 denotes each of the clamping plates,

the said plates beinp' identical in construction and rovided each with a face having vertical ribs-13 thereon adapted-to engage the adjacent face of the bar or plate 2 and each'having, above and below such ribbed plate-engaging portion, a bore 14 adapted to receive'the stem 10 ot' the. corresponding eye bolt. The clamping plates are forced into binding engagement with the opposite faces of. the bar or plate by means of nuts 15, which are shownas of the ornamental acorn type.

Each end portion of the bar or plate 2 is mounted between the said bolts and the clamping" plates 2. The stop 9 on each of sah bolts is adapted to be engaged by one of clamping plates while the nuts on said bolts are adapted to engage theoppositx clamping plate.

The assembly of the eye bolts and clamping plates is then pivotally supported from the end of the corresponding arm 4 by means of a bolt 16 having; its head 7 en gaging the bearing surface 7 of one eye bolt and the nut 18 engaging the like surface of the other eve bolt.

Having thus described my what I claim is; v

l. The combination, with supporting member ln-iving an eye. of means for clamp ing and pivotally supporting a liar or plate from said eye, said means comprising a invent ion,

pair of eye bolts, a bolt extending through the eyes of said bolts and through the eye on said supporting member and pivotally connecting the eye bolts thereto, each eye bolt having a stem and a stop. clamping plates mounted on the stems of said bolts on opposite sides of said bar or plate and each having projections adapted to bear against the ad aCent face of said bar or plate, and nuts on the threaded ends of said eye bolts.

- 2. The combination, with a supporting member having an eye, oi means for clamping and pivotally supporting a bar or plate from 'said eye. said means comprising a pair o'l eye bolts, a bolt extending through the eyes of said' bolts and thron -h the eye {on said supporting member anti pivotally 'connecting the eye bolts thereto, each eye bolt having a stem and a stop, clamping members mounted on the stems of said bolts .on opposite sides of said bar or plate, and

therein for said eye bolts and adapted to below said bar or plate respectively and in substantial engagement with the top and bottom of said bar or plate, and clamping means mounted upon the said members.

5. The combination with a supporting member having an eye at the end thereof, of means for clamping a bar or plate and for pivotally supporting it from said eye, thesaid means comprising a pair of members each having an eye or openin therethrough for the reception of a bolt %or pivotally connecting the same to the first mentioned eye, each of said members having a stop and a threaded stem projecting beyond said stop, a clamping device mounted upon said stems and adapted to engage the outer face of said bar or plate, an nuts on said stems for forcing the said clamping device against the said bar or plate and the said bar or plate toward the said stops. In testimonywhereof, I hereunto afhx my signature.

' WAYNE DUNSTON. 

